Adjustable flush-valve-seat-cutting tool



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INVEN TOR.

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w A TTORNEYS Patented Aug. 23, 1921.

Hitherto it has been JAMES MARTINO,

PATENT OFFICE.

or WHITE PLAINS, NEW YORK.

ADJUSTABLE FLUSH-VALVE-SEAT-CUTTING TOOL.

Specification of Letters Patent.

Patented Aug. 23, 1921.

Application filed April 23, 1920. Serial No. 375,998.

T 0 all whom it may concern:

Be it known that I, JAMES Maurine, a citizen of the United States, residing at \Vhite Plains, in the county of \Vestchester and State of New York, have invented certain new and useful Improvements in Adj ustable Flush-ValveSeatGutting Tools, of which the following is a specification.

My invention more particularly relates to attaching means for a cutting tool for a flush valve by which the same may readily be secured to the overflow pipe for the valve and which are readily adjustable to bring the axis of the cutting tool into alinement with the axis of the valve. After a flush valve has been used for some time, the valve seat is likely to become roughened from oxida tion, or other causes, to such an extent as to interfere with the proper operation thereof. usual, when a flush valve becomes worn to such an extent as to render its further operation unsatisfactory, to renew the valve. Such renewal, however, is expensive, as the valve itself is quite expensive and the renewal involves the expenditure of a considerable amount of time.

My invention overcomes the foregoing clifficulties by the provision of attaching means for a tool for cutting the valve seat, which means are readily secured to the overflow pipe for the flush valve and'are adjustable for different sized pipes, and readily adj ustable laterally of the pipe to bring the axis of the cutting tool into alinement with the axis of the flush valve.

My invention will best be understood by reference to the accompanying drawing, in which Figure 1 is a side view, partially in section, of a flush valve and the overflow pipe secured thereto, together with the cutting tool and the attaching means therefor in position; Fig. 2 is a sectional plan view taken along the line 22 of Fig. 1, looking in the direction of the arrows, and Fig. 3 is a detail view of a modification.

Like reference characters indicate like parts throughout the drawing.

Referring, now, to the drawing, 10 indicates the bottom of a flush tank provided with a screw-threaded opening 11 in which is received the cylindrical part 12 of a flush valve casing 13, the cylindrical portion being screw-threaded at 14 to engage the screw threads in the opening 11, the valve casing being provided with a flange 13 which engages the bottom 10 of the tank in the usual manner. The valve casing is provided with a valve seat 15, which 18 indicated, by a curved line, as at 16, as having become roughened by usage. The overflow pipe, of

usual form, for the flush valve is indicated at 17 and is secured to an extension or projection 18 of the valve casing, a passage 19 being provided which furnishes communication between the overflow pipe 17 and the valve casing beneath the valve seat, in the usual manner.

I have indicated at 20 a cutting tool adapted to cut the valve seat 15, an operating stem 21 being secured to the cutting tool and provided at its upper end with a squared shank,

s at 22, for the reception of a suitable operating handle.

In accordance with my invention, the cutting mechanism is attached to the overflow pipe by means which permit the cutting mechanism to be adjusted laterally of the supporting pipe, so that the axis thereof may be made to coincide with the axis of the. flush valve and be rigidly maintained in such position during the cutting operation.

The attaching means comprise a frame, which, in the present embodiment, consists of a yoke 23 having arms 24 furnishing bearings at 25 for the stem 21 of the cutting tool. The means for securing the frame to the overflow pipe comprise a split ring, which I have indicated in general at 26, having two parts 27, the cars 28 of which are clamped together by screws 29, so that the split ring may be clamped on overflow pipes of different diameters. The parts 27 of the split ring at the left, as indicated in Fig. 2, are provided with screw'threaded stems or shanks 30, which engage corresponding screw-threaded openings 31 in the yoke 23.

It will be apparent that by adjusting the split rings 26 with reference to the frame, the stem 21 of he cutting tool may be properly positioned to make the axis of the cutting tool 20 coincide with the axis of the flush valve. By the described. means, the cutting mechanism may readily be attached to overflow pipes of differing diameters and the cutting mechanism always be brought to the proper position with reference to the flush valve to compensate for differing distances between the overflow pipe and the axis of the valve.

In Fig. 3 I have illustrated a modified arrangement for securing the clamping rings to the yoke, parts similar to those indicated being ing the shanks 30.

in Fig. 1 but differing slightly therefrom, indicated by; like reference characters but with the letter a appended. In this form of my invention, the. shanks 30 from the ring 27 are plain and square, and pass through corresponding openings 32 in the yoke 23, the shanks being secured in position by set-screws .33 passing through suitable openings in the yoke 23 and engag- With the form of my invention illustrated in Fig. 3, which is the preferred form, it will be apparent that the yoke 23 may be adjusted after the clamplllfillllgs are secured on the overflow pipe 27'.

y properly positioning the cutting device with reference to the valve seat, the valve may readily be cut and the life of the valve thereby greatly lengthened.

What I claim and desire to secure by Let ters Patent of the United States is:

1.,In a. cutting device for the valve of a flush tank, a tool for cutting the flush valve seat, an operating stem secured thereto, a frame comprising brackets within which saidoperating stemhas its bearings, and means for adjustably securing said frame to the overflow pipefor the flush valve.

2. In a grinding device for the valve of a flush tank, a tool for cutting the flush valve seat, an operating stem secured thereto, a

ame comprising brackets within which said operatin stem has its bearings, and means for adgustably securing said frame to overflow flush valve pipes of difl'erent diameters.

3. In a cutting device for the valve of a flush tank, a tool for cutting the flush valve seat, an operating stem secured thereto, a frame comprising brackets within which said operating stem has its bearings, means for securing said frame to the overflow pipe for the flush valve, and means for adjusting extending said frame laterally of said overflow pipe, whereby the supporting frame for said cutting device may be adj ustably secured to the overflow pipe and the axis of the valvecutting tool may be made to coincide with the axis of the valve seat.

4. In a cutting device for the valve of a flush tank, a tool for cutting the flush valve seat, an operating stem secured thereto, a yoke member provided with arms formi bearin for said stem, and means for a justabFy securing said yoke member to the overflow pipe for the flush valve.

5. In a cutting device for the valve of a flush tank, a tool for cutting the flush valve seat, an o crating stem secured thereto, a yoke mem er provided with arms forming bearings for said stem, split rings adapted to be clamped to the overflow pipe for the flush valve, and means for adjustabl securing said s lit rings to said yoke mem er.

6. n a cutting device for the valve of a flush tank, a tool for cutting the flush valve seat, an operating stem secured thereto, a frame comprising brackets within which said operating stem has its bearings, clamping rings adapted to be secured to the overflow ipe of a flush valve, said clamping rings eing provided with shanks adjustably engaging openings in said frame.

In a cutting device for the valve of a flush tank, a tool for cutting the flush valve seat, an operating stem secured thereto, a frame comprising brackets within which said operating stem has its bearings, clamping rings adapted to be secured to the overflow pipe of a flush valve, said clamping rings being provided with shanks engaging openings in said frame, and set-screws for adjustably securing said shanks in position.

JAMES MARTIN O. 

